參數(shù)資料
型號(hào): HCS201
廠商: Microchip Technology Inc.
英文描述: KEELOQ Code Hopping Encoder
中文描述: 而Keeloq跳碼編碼器
文件頁數(shù): 20/28頁
文件大小: 383K
代理商: HCS201
HCS201
DS41098C-page 20
2001 Microchip Technology Inc.
FIGURE 8-3:
CODE WORD FORMAT: PREAMBLE/HEADER PORTION
FIGURE 8-4:
CODE WORD FORMAT: DATA PORTION (XSER=0)
TABLE 8-4:
CODE WORD TRANSMISSION TIMING REQUIREMENTS
V
DD
= +3.5 to 6.0V
Commercial (C):
Industrial
Tamb = 0
°
C to +70
°
C
Tamb = -40
°
C to +85
°
C
(I):
Code Words Transmitted
All
1 out of 2
Symbol
Characteristic
Number
of T
E
Min.
Typ.
Max.
Min.
Typ.
Max.
Units
T
E
T
BP
T
P
T
H
T
HOP
T
FIX
T
G
Note 1:
The timing parameters are not tested but derived from the oscillator clock.
Basic pulse element
PWM bit pulse width
Preamble duration
Header duration
Hopping code duration
Fixed code duration
Guard Time
Total Transmit Time
PWM data rate
1
3
360
1.08
8.64
3.6
34.56
36.72
14.04
97.56
925
400
1.2
9.2
4.0
38.4
40.8
15.6
108.4
833
440
1.32
10.56
4.4
42.24
44.88
17.16
119.24
757
180
0.54
4.32
1.8
17.28
18.36
7.02
48.78
1851
200
0.6
4.6
2.0
19.2
20.4
7.8
54.2
1667
220
0.66
5.28
2.2
21.12
22.44
8.58
59.62
1515
μ
s
ms
ms
ms
ms
ms
ms
ms
bps
23
10
96
102
39
271
50% Duty Cycle Preamble
Header
P1
P12
23 T
E
10 T
E
Data Bits
Bit 0
Bit 1
Bit 0
Bit 1
Header
Bit 30 Bit 31 Bit 32 Bit 33 Bit 58 Bit 59
Fixed Portion
Encrypted Portion
Guard
Time
LSB
LSB
MSB
MSB
S3
S0
S1
S2
V
LOW
RPT
Serial Number
Button Code
Status
Bit 60 Bit 61 Bit 62 Bit 63Bit 64 Bit 65
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